Complete & Balance the Equation:
i) Zn + Cu(NO3)2 ->
ii) Ag + Mg(NO3)2 ->
iii) Al + HNO3 ->
iv) Mg + Fe(NO3)2 ->
My Answers:
i) 2 Zn + Cu(NO3)2 -> Cu + 2 ZnNO3
ii) Ag + Mg(NO3)2 -> No RXN
iii) Al + HNO3 -> Al(NO3)3 + NO + 2H2O
iv) Mg + Fe(NO3)2 -> Mg(NO3)2 + Fe
i think iii is wrong.
i. No. Zn has a ++ valence, so product is Zn(NO3)2 . Redo equation
ii. ok
iii Nope: metals + acids>>hydrogen gas + metalcompound (Al(NO3)3)
iv. maybe,depends if in aq solution or not. I dont know where you are in CHEM. RX is ok if you just have studied reaction types, this is single displacement
To determine if your answer for equation iii) is correct, let's balance the chemical equation and check if all the elements are balanced on both sides.
Given equation: Al + HNO3 -> Al(NO3)3 + NO + 2H2O
Balancing step-by-step:
1. Start by balancing all the elements except for hydrogen and oxygen:
Al + HNO3 -> Al(NO3)3 + NO
2. Balance the hydrogen atoms by adding the appropriate coefficient:
Al + 3HNO3 -> Al(NO3)3 + NO
3. Balance the oxygen atoms on the left side by adding water molecules:
Al + 3HNO3 -> Al(NO3)3 + NO + H2O
4. Finally, balance the hydrogen atoms by adding more water molecules on the right side:
Al + 3HNO3 -> Al(NO3)3 + NO + 3H2O
Now the equation is balanced, and the final answer is:
Al + 3HNO3 -> Al(NO3)3 + NO + 3H2O
Therefore, your answer for equation iii) is incorrect. The correct balanced equation is:
Al + 3HNO3 -> Al(NO3)3 + NO + 3H2O